/* ==============================================================================
*
*   Copyright (c) 2010, Pierre Favier
*   All rights reserved.
*
*   NTasking is free software: you can redistribute it and/or modify it
*   under the terms of the GNU General Public License as published by the
*   Free Software Foundation.
*
*   Redistribution and use in source and binary forms, with or without
*   modification, are permitted provided that the following conditions
*   are met:
*
*   -   Redistributions of source code must retain the above copyright notice,
*       this list of conditions and the following disclaimer.
*
*   -   Redistributions in binary form must reproduce the above
*       copyright notice, this list of conditions and the following
*       disclaimer in the documentation and/or other materials
*       provided with the distribution.
*
*   THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
*   WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
*   OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
*   DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
*   BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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*   TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
*   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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*   THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
*   SUCH DAMAGE.
*
* ============================================================================== */

using System;
using NUnit.Framework;
using Rhino.Mocks;
using Rhino.Mocks.Constraints;

namespace NTasking.ValidationTests.Other
{

    [TestFixture]
    public class TaskCreationAndTermination : ValidationTest
    {

        internal class TaskFinishes : ValidationTestTask
        {

            internal TaskFinishes(IValidationTestResult result)
                : base(result)
            {
            }


            protected override void Body()
            {
            }

        }


        internal class TaskThrows : ValidationTestTask
        {

            internal TaskThrows(IValidationTestResult result)
                : base(result)
            {
            }


            protected override void Body()
            {
                throw new NotImplementedException();
            }

        }


        internal class TaskTerminated : ValidationTestTask
        {

            [Entry]
            public Action Begin { get; private set; }


            internal TaskTerminated(IValidationTestResult result)
                : base(result)
            {
            }


            protected override void Body()
            {
                Select(s => s.
                    Accept(Begin).
                Or.
                    Terminate
                );
            }

        }


        internal class TaskAborted : ValidationTestTask
        {

            [Entry]
            public Action Begin { get; private set; }


            internal TaskAborted(IValidationTestResult result)
                : base(result)
            {
            }


            protected override void Body()
            {
                Accept(Begin);
            }

        }


        [Test]
        public void TaskFinishesNormally()
        {
            TaskFinishes task;
            IValidationTestResult result = Mocks.DynamicMock<IValidationTestResult>();

            Ada.Declare(() =>
            {
                task = new TaskFinishes(result);

                // Setup text expectations

                Expect.Call(() => result.TaskFinished(null)).
                    IgnoreArguments().
                    Constraints(Is.Same(task));

                Mocks.ReplayAll();
            },
            Begin: () =>
            {
                // Start test execution
            });
        }


        [Test]
        public void TaskFinishesOnTerminate()
        {
            TaskTerminated task;
            IValidationTestResult result = Mocks.DynamicMock<IValidationTestResult>();

            Ada.Declare(() =>
            {
                task = new TaskTerminated(result);

                // Setup text expectations

                Expect.Call(() => result.TaskFinished(task)).
                    IgnoreArguments().
                    Constraints(Is.Same(task)).Repeat.Once();

                Mocks.ReplayAll();
            },
            Begin: () =>
            {
                // Start test execution
            });
        }


        [Test]
        public void TaskFinishesOnException()
        {
            TaskThrows task;
            IValidationTestResult result = Mocks.DynamicMock<IValidationTestResult>();

            Ada.Declare(() =>
            {
                task = new TaskThrows(result);

                // Setup text expectations

                Expect.Call(() => result.TaskThrewException(null, null)).
                    IgnoreArguments().
                    Constraints(Is.Same(task), Is.TypeOf(typeof(NotImplementedException)));

                Mocks.ReplayAll();
            },
            Begin: () =>
            {
                // Start test execution
            });
        }


        [Test]
        public void TaskFinishesOnAbort()
        {
            TaskAborted task = null;
            IValidationTestResult result = Mocks.DynamicMock<IValidationTestResult>();

            Ada.Declare(() =>
            {
                task = new TaskAborted(result);

                // Setup text expectations

                Expect.Call(() => result.TaskAborted(null)).
                    IgnoreArguments().
                    Constraints(Is.Same(task));

                Mocks.ReplayAll();
            },
            Begin: () =>
            {
                // Start test execution

                Ada.Delay(100);

                task.Abort();
            });
        }

    }

}
